Water Monitor
markaggar/Water-Monitor · vv1.4.1
Home Assistant Integration that leverages an existing water flow sensor for tracking water usage sessions and detecting potential leaks.
In Apple Home through HomeKit Bridge
What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.
| Entity | Shows up as | Note |
|---|---|---|
binary_sensor | Sensor (motion, contact, leak, smoke…) | |
sensor | Sensor (temperature, humidity, air quality…) |
What people report
Water Monitor builds on existing flow sensors; Droplet, Flowsmart and Titan valve are listed, and a DIY ESPHome meter needed low-flow leak detection off.
- Works3
- Partly works1
| Device | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| Droplet water monitor | Works | Listed as supportedSaved copySupported devices: Droplet; Flowsmart All-in-one; Titan Water Valve Actuator; Home Assistant: 2024.1.0+; Python: 3.11+; Flow sensors: Any sensor providing flow rate (GPM/LPM); Volume sensors: Any sensor providing cumulative volume (Gallons/Liters); Hot water: Any binary sensor (on/off). Excerpt saved from the README on 2026-10-23. | README | |
| Flowsmart All-in-one | Works | Listed as supportedSaved copySupported devices: Droplet; Flowsmart All-in-one; Titan Water Valve Actuator; Home Assistant: 2024.1.0+; Python: 3.11+; Flow sensors: Any sensor providing flow rate (GPM/LPM); Volume sensors: Any sensor providing cumulative volume (Gallons/Liters); Hot water: Any binary sensor (on/off). Excerpt saved from the README on 2026-10-23. | README | |
| Titan Water Valve Actuator | Works | Listed as supportedSaved copySupported devices: Droplet; Flowsmart All-in-one; Titan Water Valve Actuator; Home Assistant: 2024.1.0+; Python: 3.11+; Flow sensors: Any sensor providing flow rate (GPM/LPM); Volume sensors: Any sensor providing cumulative volume (Gallons/Liters); Hot water: Any binary sensor (on/off). Excerpt saved from the README on 2026-10-23. | README | |
| DIY ESPHome water meter | Partly works Local | Errors until low-flow leak detection disabledSaved copyThat's not from the water monitor integration. Can you share some more details about the flow sensor you are using - e.g. some info from the states section of developer tools would be helpful that includes the various classes it using. Tx! -Mark 206-617-8033 From: Proche72 *@*.*> Sent: Friday, December 12, 2025 12:02:13 AM To: markaggar/Water-Monitor *@*.*> Cc: Mark Aggar *@*.*>; Comment *@*.*> Subject: Re: [markaggar/Water-Monitor] ESPHOME water meter (Issue #31) [https://avatars.githubusercontent.com/u/68066265?s=20&v=4]Proche72 left a comment … Excerpt saved from GitHub on 2026-10-23. | Issue #31 · 2025-10 |
Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.
How it connects
Local polling
Talks to the device on your network, asking it for updates every so often.
Details
| Installs (analytics) | 128 (0.02%) |
|---|---|
| GitHub stars | 63 |
| Latest version | v1.4.1 (2026-10-06) |
| Set up in the UI | Yes |
| Maintainers | @markaggar |
| License | MIT |
Devices listed in its README
- Droplet
- Flowsmart All-in-one
- Titan Water Valve Actuator
- Home Assistant: 2024.1.0+
- Python: 3.11+
- Flow sensors: Any sensor providing flow rate (GPM/LPM)
- Volume sensors: Any sensor providing cumulative volume (Gallons/Liters)
- Hot water: Any binary sensor (on/off)
In ReReHome
Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.
Bridges get their own settings page listing the accessories behind them.
Sources
- Documentation: https://github.com/markaggar/Water-Monitor
- Source code: https://github.com/markaggar/Water-Monitor
- Issues: https://github.com/markaggar/Water-Monitor/issues
- HACS: https://hacs.xyz
